Thursday 6 November 2008

Gibson ES125D re-fret

This is a continuation of my post describing a re-fret. This nice old Gibson is from 1966 and had such fret and finger board wear that I just had to show you it.


The serial number isn't too clear in the photo but its 433265 and according to Gibson's website thats 1966.




This one's been re-fretted before a long time ago. Its had some 'rising tongue' which is the end of the board raising up ski jump style. Someone has tries to cure this by filing away the frets at the end of the neck.




As you can see there's almost nothing left. Certainly not playable here.





The board had such a lot of playing wear it was worth taking this photo. The whole board had wear like this all over it! Wow what a player! As you can just see in this pic when I took the frets out the board started to crumble so it took a lot of care and many little repairs to get it ready to take new frets. Leveling a board like this is a big job.




To ensure I didn't sand through the marker dots I took them out and put them back after. The rest of the job was straight forward (see Maton Re-Fret). Unfortunately I didn't get a pic of the finished instrument - the owner was very keen to get his hands on it.



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I am no longer repairing guitars - since covid 19 I now work full time making pickups

Shipping a guitar



No photos of guitars showing their intimate bits this time I'm sorry to say. I've been asked a lot recently about the best way to ship a guitar. Airlines can cause a lot of damage and although it keeps me in work its often very sad to see the results. If you don't have a hard case for you guitar - get one! Airlines don't let you take guitars on board with you anymore so they've got to go in the hold - a gig bag simply isn't enough protection. Make sure the end of the headstock doesn't touch the end of the case. If your neck is mahogany (most acoustics, gibson style elecs, basically almost any guitar with an angled back head) slacken off the strings. The reason for this is that mahogany can shatter with sudden impacts resulting in a broken neck. The string tension makes the neck more rigid and increases the chances of a breakage. If you have a maple neck (Fender type) there's no need to slacken the strings - maple has such a flex that it can withstand almost anything.
Watch Hendrix, SRV, Richie Blackmore - ever see them actually manage to snap a Fender neck? Wrap the guitar up as much as possible - clothes are good for this. It will help lessen any damage from impact. Make sure the pocket inside the case can't open - a capo and a tin of fast fret can cause some pretty big sctatches! Once its all packed properly take a trip to you local music shop and get a large rectangular cardboard guitar box to put your case in. These boxes are what guitars come from the manufacturer in and shops are usually pleased to get rid of them.Tape it all up securely, use 'Fragile' stickers and say a little prayer to whichever god you feel is looking down on you. Maybe help an old lady accross the road to gain a few Karma points. You've done all you can. Most airline damage I come accross (as I see a lot of it) involves bad packing.One other tip - if you play a bolt on neck electric take the neck off, put both parts in a bag and take it on as hand luggage.

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Feel free to contact me about repair work (if you are in NZ). I only check emails weekly so the workshop phone is always the best 09 307 6501.


Workshop Hours

Mon……. 8-6
Tues……. 8-6
Wed…….. Closed
Thurs …..8-6
Fri ……….8-6
Sat/Sun ..Closed

Mr Glyn’s Guitars

  21a Khyber Pass Road
Auckland
New Zealand
glyn@mrglyn.co.nz
09 307 6501, 021 912678

Maton 'Phil Manning' Re-Fret



I get a lot of enquiries about re-fretting - what's involved, how does it affect the guitar's sound and playability? So when this rather nice old Maton came in for a re fret I took the chance to take a few photos.

This is not too good a picture of it but its gives an idea. The guitar is from the mid 70's and its been used a lot. Usually I find guitars like this one that show evidence of a lot of playing are good ones. Bad guitars just don't get played as much! The bridge isn't original and touches the bridge pickup so that's getting replaced too. I get a lot of my parts from http://www.guitarparts.co.nz/ - Iain who runs it is a lovely bloke and always gets stuff to me the next day. He does the 'Allparts' range which I love.But the main problem with this guitar is of course the fret wear. Not only are there deep dents in the frets around the open D chord but lots of wide flat areas all over the neck. I can tell its been owned by a pretty good player - blues/rock style I'd guess by the wear from a wide vibrato and string bending.If the wear isn't too deep it could be fret stoned out but with this one there's no chance of that. When the frets are this flat the guitar always sounds dull and lifeless. With a rounded, polished fret the string has a 'point' it can vibrate off instead of an indefined flat area.As frets get older their seating in the slot can get a little sloppy and absorb instead of transmit string energy. A lot of 'dead spots' on necks that get blamed on inconsistancies in the wood are really just loose frets.


Re-fretting always makes a guitar sound better.The first part of the job is to remove the old frets. I do this with a pair of pincers that I've ground to be flat on the face. This means I can get right under the fret more easily. Its quite a delicate operation because I don't want to pull any wood up with them. These frets are still well seated which is nice to see considering they've been in there since the mid 70's.



The nut needs to be removed and in this case replaced. These days I often use to use 'Graph TechTusq' for nuts and acoustic saddles. Their 'string saver' saddles are excellent too. I remove the nut with a thin, narrow (1/8") chisel I made specially for the job. Its a tool I made when I was in college about 15 years ago and its served me well. This bone nut isn't held on too tightly and comes off easily.

So the board is now fretless and ready for leveling. In this pic you can see how dirty the wood is from years of playing and some of the dents in the board from long fingernails. I level the board using a glass plane. This is a sanding block made of toughened glass so its pretty flat. Different grades of abrasive paper can be attached to it to sand the board level.


This is an essential part of the process. If the board isn't level then when I do the final skim of the fretshave to take out any unevenness on the frets. I don't want to put wear into new frets. This pic is taken half way through the leveling - you can still see wear in the board.



I sand through the grades of paper all the way to 1000 grade. Between sanding I wet the wood with water and leave it to evapourate. This 'fluffs' the grain out and gives a finer finish. After 3 or 4 times the wood doesn't expand any more and its oh so smooth!



The final stage before actually fretting is cleaning out the slots.I use a little saw that I've added a depth-stop to so I only go as deep as I need to. Maton have used a glue in the fret slots which needs cleaning out. Its a method I prefere to use myself and its good to see them doing it - most manufacturers don't bother. You can see how much better the board looks after its sanding.



Fretwire comes in a lot of different sizes. After a long discussion with the owner of this guitar, playing his rather nice Thinline Tele and having him play my Strat he decided on narrow jumbo wire. Its the same width as old style Fender wire but its higher. He's a good player and likes to bend strings so high wire is a good choice. With high frets your finger tip touches less wood which makes string bending a lot smoother.


A lot of players like high frets - I'm one of them. As I mentioned earlierI like to put glue in the fret slot. I use an alaphatic resin (Titebond). Its a water based wood glue that goes brittle hard when set. Now I'm not trying to glue the fret in - sticking wood to metal using wood glue is a dead loss. I do it to fill any gaps there might be under or around the fret with something hard. When the fret goes in on top of the glue it pushes it into every gap including into the wood end grain inside the fret slot. This gives the fret a very firm connection to the wood of the board and to the neck and of course makes a difference to the tone. The better the fret is seated the more lively and responsive the guitar is.


Ok so here's the fun bit! I put the frets in by the old method of tapping them in with a fret hammer. I first curve the fret to a tighter radius than the board ( so the ends sit down nicely).I very gently tap the ends into the slot just enough to hold the fret in.



I use a fret drift (block of mild steel) to even out the hammer pressure. The neck is supported with a neck rest that has a leather pad to protect the finish. I do this over the most solid part of the work bench (over a leg) so the hammer blows are 'dead'. If you have to hit the fret more than a few times then you end up loostening it. You can hear when its gone in true - there's a lot of experience and feel involved.


I leave the glue to dry for a few hours and then cut the fret ends off using my pincers again. Then its a case of filing the fret ends. This is one of the most time consuming and fiddly parts of the job and the hardest to describe. Not only does the angle need to be cut but the ends filed smooth so there are no sharp edges. And of course there are usually 44 of them. Then its a fret stone (http://mrglyn.blogspot.co.nz/2012/01/fret-stone-fender-stratocaster.html), oiling the board and setting the instrument up. I use "Luthiers Fines' fretboard oil - www.luthiersfinest.com it's available through me at my workshop or www.guitarstuff.co.nz



There's a lot of work in a refret but the end result is a completely new playing surface, better tone and response and of course giving your instrument many more years of service.

      

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Gibson SG neck re-set


This one came in last week, its a 1973 Gibson SG. I have a bit of a love/hate relationship with SGs. I love the sound of them, that mid-range definition, fat but with bite. I love the access to the high frets, there's just nothing in your way. I love the look of them, so simple, not over flash and with a hint of Batman (ha ha). But I'm not so keen on the way they ballance - just too neck heavy and the neck/body joint is just so weak.This one has had a problem with the neck joint that's been re-glued by someone before. The neck angle is such that the bridge is adjusted so its right down on the body and the action is still too high. The neck needs to come off and put back at the correct angle with of course no visible evidence of any work.SG necks are glued in using a heat reversable glue so normally it could be heated and removed. But this one has been re-glued by someone else and I'm not sure what glue they've used.So the first thing to do is remove the end of the fretboard to expose the joint. I remove the fret directly over the joint, saw through the board, heat it up and remove it (See the posting on the Fernandes 'V').


Here's the neck joint exposed. Its just a simple tenon joint. Incidentally its the same in a Les Paul. The hole in the middle of it is the truss rod anchor. The joint isn't the most snug fit I've ever seen but its not the worst either. The white pieces of paper either side of it are to protect the finish from the heat I'm about to apply to it to remove the neck. I can see from bits of glue residue left from the last repair that PVA (white glue) was used. This is why the neck has crept forward under string tension. PVA is ok for general woodworking but this is a guitar. PVA is still elastic when its set so its not suitable for stressed joints. It is heat reversable though so I'll be able to get the neck off ok. I warm the neck joint up very carefully using a heat gun to soften the glue and with a lot of patience it starts to move and eventually comes off cleanly.





You can see a load of glue still stuck to the neck pocket in these shots.The next job is to clean the joint up and get it ready for re-gluing.




I've decided to use animal glue for this job. Its strong, is heat reversable (someone might need to take it appart in years to come) and has great tonal qualities.




The glue beads need to be mixed with water and warmed up to mix and soften. I use a rice maker for this on its heatsetting (not boil). It takes a while for the glue to be ready so I spend that time dry running the clamping. Animal glue doesn't give you much time. It gels really quickly so the joint is goint to have to be clamped up quickly. I'm using a couple of guitar strings to pull the joint in and a clamp to hold it together. The strings can also tell me if I've got the angle correct. I've fitted the bridge and adjusted it to the height I want itso I check the neck angle by measuring the action at 12th fret. I'm aiming at 2mm.When the glue's ready I warm up all the surfaces of the joint just to delay the gel time a little when it all goes together.




Any glue that squeezes out can be removed with a damp cloth. I've put tape over the end of both horns to protect them from any knocks. This photo was taken after the glue was dry and I'd taken the clamp off. So all that remained was to replace the end of the board, put the fret back in and give it a fret stone to make sure everything was level. Then put the neck pickup back and set it up. The guitar turned out great and sounded better too. That rubbery PVA was doing the tone no good at all and of course its a lotmore playable now.




Jobs like this are very satisfying, I love the major structural stuff that changes a guitar thats a bit duff back into what it should be. This SG sounds great, its got a lovely feeling 'old style' fat neck and plays like a dream - I wish it was mine ha ha.

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Strat Pick-up height


I come accross Strats and Teles a lot - I'm a Fender player myself. Its very common for the pick-up height to be adjusted incorrectly.




Its something that's easy to sort out and can make a big difference to your sound. If the pick-up is too far from the string it won't 'hear' it enough. The result of this is not only a lack of volume and power but a tonal change. There's not as much attack to the note and a fender can loose its percussive 'boing'. If it's too close, however, a few things can happen. The magnet 'sucks' the string in. This happens more on the bass side than the treble. The string usually vibrates in a circular motion but with the magnet too close it can only vibrate vertically. The result of this is 'wolf tones'. The bass strings when played on the higher frets have a strange warble and often it sounds like there's an odd harmonic interfering with the fundamental. In some cases the string is pulled down enough to cause fret buss on the higher frets - often mistaken for an uneven fretboard.


The height is adjusted using the two screws one each end of the pickup. The pickups are either mounted on springs or more often on the expensive ones with rubber sleeves. The rubber is just traditional and in fact not a very good system. When adjusting the height you can often feel the rubber fighting against you. Press the E strings down on last fret and look at the gap between the bottom of the string and the top of the pickup magnet. Fender factory spec is 1/8" (3.2mm) on the bass side and 3/32" (2.4mm) on the treb for a standard strat. Another way is to wind the pickup too close to the string until you hear the wolf note and then back it off until its gone.
The same goes for most single coit pickups. With a tele neck pickup, however, be aware that the cover has no magnetic influence and the magnet is of course below it. Its best to use the listening method with these pickups. Its worth playing around with to find what suits you. Hope this has been useful.

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Fernandes 'V' ebony fingerboard

This week I've had a lot of work on - a Hagstrom in need of re-wiring, a telecaster neck pickup to re-wind, A Les Paul to set up as well as the more run of the mill stuff. But the main job has been to replace the fingerboard on a Fernandes 'Flying V'.


The board was rosewood and the customer wanted it changed for ebony. So of course it needed to be re-fretted as well. As this is no doubt very much a ROCK guitar I recomended we fitted high fret wire. I'm very fond of the high narrow wire for this style of instrument. We also decided not to put any marker dots in the face of the board (mainly for looks) as most players don't look at them anyway. Side dots are usually enough. I got a pre made ebony board from an American supplier which had the advantage of already having the fret slots cut in it and a radius. This saves so much time that its worth it. The radius was a little too small for this style of guitar so I had to flatten it a little.



Removing a fingerboard requires a great deal of patience. Boards are always attached with a heat-reversable glue which means that if you warm them up the glue bond will soften an its then possible to coax the board off. The first thing is to plan how the new one will go on in the correct position. To ensure this I remove 12th fret and drill a couple of holes through the fret slot and into the maple of the neck. In these I push two panel pins. I made identical holes through 12th fret on the new board as well. So when the new one goes on I know its located correctly. Now its time to remove the rosewood board.
Firstly I scrape the finish off the sides of the board using a blade. This ensures it won't crack and splinter when I'm taking the board off. I carefully use a heat gun to warm it up. The dots on this one are mother of pearl so they're ok to get hot. If they were plastic I'd mask them so they don't melt. When it feels warm enough (from experience) I ease an oldbutter knife under the board. This is where the patience comes in. You can feel when it wants to come off, push too hard and the wood can split. The warming and pushing can take some time but rushing it here can mean a lot of time spent later cleaning up your mess.

When you're half way through its so tempting to push a little harder and hurry up the job.
When its finally off any glue residue can be cleaned up ready for the new one to go on.

I use alaphatic resin glue and clamp the neck to a slightly curved caul block to build in a bit of relief to the neck. I find rubber straps give a good even clamping pressure. Any glue that oozes out of the sides when it's clamped I clean off imediately with a damp rag. Its easier to do it when its wet that wait and do it later. The neck is left in this clamping jig for 24 hours. The next stage is shaping the board, re-fretting and putting the side dots in. I'll write about that another time.

Here's the finished job

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Reverend 'Warhawk' set-up



I do a lot of work for 'poolside studios'. They importvarious makes of musical stuff including 'Top Hat' amps, 'Eastwood' guitars and 'Reverend' guitars. All their guitars that come into New Zealand get checked over by me first. Not all importers care enough to do this. You can find Poolside at http://www.poolsidestudios.co.nz/ Today I've got a 'Reverend Warhawk' on the bench to check over.



Its a bolt neck fixed bridge electric guitar with two P90 pickups. My photo just doesn't do the colour justice. Reverend guitars are all well built they've got comfy deep necks, feel solid and lively, ballance great on a strap and sound fantastic as well as looking cool. Its not often I get this excited abouta new brand but the folk at Reverend seem to have got it right. This one was in tune out of the box and only needed a couple of small adjustments. One of the many factors that determin playability and a good action is the depth of the nut slots. If they're too deep the open strings will buzz, too high and its going to be hard to play especially for first position chords.

The best method for checking nut height is to place your finger between 2nd and 3rd fret pushing the string down as if fretting 2nd. Then look at the gap between the string and 1st fret. There should be a gap but it should be extremely small(about 1/4mm). On the bass strings the gap can be a bit bigger. On this guitar the gap was a bit big so the slots needed to be deepened.
I've seen this job done with all sorts of tools including hacksaw blades and kitcken knives. There's only one correct tool and thats a nut file. These files come in different thicknesses for each string and are round in profile. The bottom of the slot needs to be smooth and rounded. A 'V' slot will grip the string causing tuning problems and string breakage as will a square bottomed slot. In my experience most cases of tuning probsare caused by the nut.
This pic shows me cutting the nut. Note the angle of the file. If you cut slots too shallow (parallel to the fingerboard) the string can rattle about in the slot. Once the nut is cut the slots need lubricating, I prefere candle wax for this but pencil graphite is just as good. This was the only real set up fault with this Reverend. Check out NZ Musician's review (May 07) of Reverend. The review one I didn't have to do anything on- just checked it and all was fine. That one is fitted with a Wilkinson trem and had three P90's. It stayed in tune just great no matter how much cack handed Van Halen I threw at it.

All that was left was to raise the pickup height atouch and it was ready. Its so satisfying working on well made instruments.

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Feel free to contact me about repair work (if you are in NZ). I only check emails weekly so the workshop phone is always the best 09 307 6501.


Workshop Hours

Mon……. 8-6
Tues……. 8-6
Wed…….. Closed
Thurs …..8-6
Fri ……….8-6
Sat/Sun ..Closed

Mr Glyn’s Guitars

  21a Khyber Pass Road
Auckland
New Zealand
glyn@mrglyn.co.nz
09 307 6501, 021 912678